Olop johansojst



(No Model.)

- O. JOHANSON.

STEM WINDING DEVICE FOR WATCHES. No. 351,920. Patented Nov. 2, 1886.

WITNESSES IN VENTOR ATTORNEYS.

stem-winding watches constructed in such a UNITED STATES PATENT OFFICE.

OLOF JOHANSON, OF NEW YORK, N. Y.

STEM-WINDING DEVICE FOR WATCHES.

SPECIFICATION forming part of Letters Patent No. 351,920, dated November 2, 1886.

Application filed February 26, 1886. Serial No. 193,336, (No model.)

To all whom it may concern:

Be it known that I, OLOF JoHANsoN, of the city, county, and State of New York, have invented a new and useful Improvement in Stenr Winding \Vatches, of which the following isa full, clear, and exact description.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure l is a face view, partly in section, of a stem-winding watch to which my improvement has been applied. Fig. 2 is a face view of the same,illustrating the use ofthe improvement. Fig. 3 is a face view of a part of the same, showing a slight modification.

The object of this invention is to provide manner that they can be easily and quickly wound.

The invention consists in a stem Winding watch constructed with the guard-ring attached to the rotary crown of the stem, as will be hereinafter fully described.

A represents the watch-case, to which is secured the stationary tubular stem 13. Through the stationary stem B passes the shaft or rotary stem 0, the inner end of which is connected with the winding mechanism of the watch in the ordinary manner. To the-outer end of the shaft 0 is attached the crown D, the

outer surface of which may be milled, so that it can be readily turned by the fingers.

To the crown D, as shown in Fig. 3, or to a collar formed upon or rigidly connected with the said crown, as shown in Figs. 1 and 2, is pivoted the guard-ring E. With this construction, by turning the guard-ring E to one side the forefinger can be inserted in the said guard-ring and used as a crank to rotate the crown D and thus wind the watch; or the swiveled hook of the guard can be used as a crank to turn the crown D and wind the watch, as illustrated in Fig. 2.

With this improvement stem winding watches can be easily and quickly wound, so that it requires only from twenty to twentyfive seconds to fully wind a Waterbury watch that has run down.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

A stem-winding watch constructed with the guard-ring E, attached to the rotary crown D, secured to the rotary shaft 0, that operates the winding mechanism, substantially as herein shown and described, whereby the watch can be readily and quickly wound, as set forth.

w OLOF JOHANSON.

Vitnesses:

JAMES T. GRAHAM, EDGAR TATE. 

